Home / 8,447.32-12,672.30-3,182.74

Finding the Fourth Proportional to 8,447.32, 12,672.30 and 3,182.74

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Solution

The fourth proportional to 8,447.32, 12,672.30 and 3,182.74 is: 4,774.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,447.32 : 12,672.30 = 3,182.74 : x
  2. Step 2: Convert to fraction form
    8,447.32/12,672.30 = 3,182.74/x
  3. Step 3: Cross multiply
    8,447.32x = 12,672.30 × 3,182.74
  4. Step 4: Simplify right side
    8,447.32x = 40,332,636.10
  5. Step 5: Solve for x
    x = 40,332,636.10/8,447.32
  6. Step 6: Final answer
    x = 4,774.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.